UberFlight is a fork of the Baseflight RC flight controller firmware (http://www.baseflight.net) with a focus on adding features that are not in Baseflight for one reason or another.
Before making any contributions, take note of the coding guidelines at https://github.com/multiwii/baseflight/wiki/CodingStyle Stop by the IRC channel #multiwii on Freenode for more information.
The latest builds can be obtained here: http://uberflight.fiendie.net
Information about the builds is provided at http://dev.baseflight.net:8080/job/UberFlight
Note that these images aren't necessarily flight-tested so use them at your own risk. Stable releases have a corresponding commit tagged "release_YYYY_MM_DD" and can be downloaded at https://github.com/UberFlight/UberFlight/releases When in doubt use the configurator app (see below) to flash the latest stable firmware release.
UberFlight is fully compatible with Baseflight Configurator: https://chrome.google.com/webstore/detail/baseflight-configurator/mppkgnedeapfejgfimkdoninnofofigk?hl=en
UberFlight is licensed under GPLv3 (just like MultiWii code it originated from), with all the conditions the license implies.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the http://www.gnu.org/licenses/ for more details.